centos7 安装zookeeper3.4.8集群

1.下载上传文件到centos中

2.解压文件夹

3.cd conf 文件下，cp  zoo_sample.cfg  zoo.cfg

4.vim zoo.cfg

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/opt/zookeeper
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
server.1=192.168.121.131:2888:3888
server.2=192.168.121.129:2888:3888

设置文件如上所示：

ip地址也可以用主机名代替

5.创建myid文件，在/opt/zookeeper 文件夹下 创建myid  运行命令  touch myid   ,   然后写入数字   echo 1 >myid

6.在192.168.121.129 中也如192.168.121.131相关的操作

7.关掉防火墙，或者打开相应的端口

8.cd 到  bin 目录下

9.启动server.1 然后启动 server.2 ，./zkServer.sh start

10.过一段时间运行./zkServer.sh status  查看状态如果显示下面的信息则表示成功

[root@fymold bin]# ./zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /home/fuyuanming/zookeeper-3.4.8/bin/../conf/zoo.cfg
Mode: leader

或者：

[root@fymnew bin]# ./zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /home/fuyuanming/zookeeper-3.4.8/bin/../conf/zoo.cfg
Mode: follower

表示成功